How To Fix ESH_HANA_ADMIN271 - Obsolete entities detected - check whether connectors are still intact

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_HANA_ADMIN - ESH HANA Index Administration

• Message number: 271

• Message text: Obsolete entities detected - check whether connectors are still intact

What causes this issue?

The system has detected a situation where some of the parts of a search
connector could not be rebuilt or restored, or have become obsolete,
e.g. because of an incompatible change in the database infrastructure
(database tables, database views, view attributes, full-text indices)
during an upgrade step.

System Response

The result may be a temporary loss in functionality till the search
connector as a whole has been upgraded to its final state.

How to fix this error?

In most cases there is nothing to do.
Potentially incompatible changes on the database side should always be
accompanied by according changes in the search models, and a subsequent
search model update should take the search connector to a consistent
state again.
If the process reporting this message is not automatically executing a
full Enterprise Search model update in this or one of the subsequent
steps you should check whether it is necessary to update the search
connectors manually after the process has completed, e.g. by starting an
appropriate update task list.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_HANA_ADMIN271 - Obsolete entities detected - check whether connectors are still intact ?

  The SAP error message ESH_HANA_ADMIN271 indicates that there are obsolete entities detected in the SAP HANA system, specifically related to the SAP Enterprise Search (SAP ESH) configuration. This error typically arises when there are inconsistencies or issues with the connectors that link the search system to the underlying data sources.
  Cause:
  
  Obsolete Entities: This can occur when entities (like tables, views, or other data structures) that were previously part of the search configuration are no longer valid or have been deleted.
  Connector Issues: If the connectors that link the search system to the data sources are not functioning correctly or have been misconfigured, it can lead to this error.
  Changes in Data Model: If there have been changes in the underlying data model (like renaming or removing fields), it can cause the search configuration to become outdated.
  System Upgrades: After an upgrade or migration, some entities may become obsolete if they are not compatible with the new version.
  
  Solution:
  
  
  Check Connectors: 
  
  Go to the SAP HANA Studio or the relevant administration tool and check the status of the connectors. Ensure that they are properly configured and active.
  If any connectors are inactive or misconfigured, reconfigure or reactivate them.
  
  
  
  Review Obsolete Entities:
  
  Use the SAP HANA Studio or the relevant transaction codes to identify the obsolete entities. You can usually find this information in the logs or the administration console.
  Determine if these entities can be removed or if they need to be updated to reflect the current data model.
  
  
  
  Update Search Configuration:
  
  If the entities are no longer needed, you can remove them from the search configuration.
  If they are still relevant, update the configuration to ensure that it reflects the current state of the data model.
  
  
  
  Rebuild Indexes: 
  
  After making changes to the connectors or the search configuration, it may be necessary to rebuild the search indexes to ensure that the search system is up to date.
  
  
  
  Consult Documentation: 
  
  Refer to the SAP documentation for specific instructions related to your version of SAP HANA and SAP ESH. There may be version-specific steps or tools available to help resolve this issue.
  
  
  
  Contact SAP Support: 
  
  If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance. They can provide more detailed troubleshooting based on your specific system configuration.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to identify and resolve the cause of the ESH_HANA_ADMIN271 error message in your SAP system.